摘要
土壤中元素含量的高低和元素存在的形态变化从根本上受控于自然地质地球化学作用过程。地质背景对土壤地球化学元素含量的贡献度在区域上具有决定意义,不同区域土壤地球化学元素含量水平具有明显的差别。不同的地貌景观是由不同的地质作用形成,从而形成不同的地球化学特征。在多目标区域地球化学调查的成果基础上,根据因子分析、聚类分析研究成果,结合与典型元素组合、地貌、地质特征把河套地区划分为9个地球化学分区,并进一步划分为13个地球化学亚区。通过地球化学分区,为河套地区的农业发展、环境保护等工作提供了基础地球化学资料。
The elemental content and existing morphological changes in soil are fundamentally controlled by natural geological and geochemical processes.The contribution of geological background to the contents of geochemical element in soil has determined significance at a regional level and different source soil contains different content of geochemical elements.Different landscapes are composed by different geological formations;thereby different geochemical characteristics are generated.This article divides the Hetao area into nine geochemical zones and further sub-divides it into eleven geochemical zones based on the results of multi-objective regional geochemical survey,on the results of factor analysis and cluster analysis,and integrated with the typical elements combination,geomorphology,and geological characteristics.The geochemical zoning provides the basic geochemical data for agricultural development and environmental protection in Hetao area
出处
《地质科技情报》
CAS
CSCD
北大核心
2015年第2期1-14,共14页
Geological Science and Technology Information
基金
中国地质调查局与内蒙古自治区政府合作项目"内蒙古河套农业经济区多目标区域地球化学调查"(200414200005)
关键词
内蒙古
河套地区
地质特征
地貌景观特征
元素组合特征
地球化学区
Inner Mongolia
Hetao area
geological characteristics
landscape features
elements combined features
geochemical zones
